2 @section @code{cnd_signal}
7 @ref{ISO C Condition Variables,,Condition Variables,libc}.
10 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Condition-Variables.html}.
15 Portability problems fixed by Gnulib:
18 This function is missing on many platforms:
19 glibc 2.27, macOS 11.1, FreeBSD 9.3, NetBSD 8.0, OpenBSD 6.7, Minix 3.1.8, AIX 7.1, HP-UX 11.31, Solaris 11.3, Cygwin 2.9, mingw, MSVC 14, Android API level 29.
22 Portability problems not fixed by Gnulib: